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if a>0 and x>y the show that a^x+a^-x>a^y+a^-x

if a>0 and x>y the show that
a^x+a^-x>a^y+a^-x
 

Grade:12th pass

1 Answers

Ravi
askIITians Faculty 69 Points
9 years ago
Both the sides contain a common exponenta^x+a^-x>a^y+a^-x

Eliminate the exponent first. As x>y, and a>0 so a^x>ay

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